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<title>Problem B - Back to High School Physics.</title>
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<div class="Section1">

<p class="MsoNormal" style="text-align: center;" align="center"><b style=""><font size="5">Problem B<o:p></o:p></font></b></p>

<p class="MsoNormal" style="text-align: center;" align="center"><b style=""><font size="6">Back to High School Physics</font></b></p>

<p class="MsoNormal" style="text-align: center;" align="center"><b style=""><span style="font-size: 12pt;">Input: </span></b><span style="font-size: 12pt;">standard input<b style=""><o:p></o:p></b></span></p>

<p class="MsoNormal" style="text-align: center;" align="center"><b style=""><span style="font-size: 12pt;">Output: </span></b><span style="font-size: 12pt;">standard output<o:p></o:p></span></p>

<p class="MsoNormal" style="text-align: justify;">&nbsp;<span style="font-size: 12pt;"><o:p></o:p></span></p>

<p class="MsoNormal" style="text-align: justify;"><span style="font-size: 12pt;">A particle has initial velocity and constant acceleration. If
its velocity after certain time is v then what will its displacement be in twice of
that time? <o:p></o:p></span></p>

<p class="MsoNormal" style="text-align: justify;"><span style="font-size: 12pt;"><span style="">&nbsp;</span><o:p></o:p></span></p>

<p class="MsoNormal" style="text-align: justify;"><b style=""><font size="5">Input</font></b></p>

<p class="MsoBodyText2">The input will contain two integers in each line. Each
line makes one set of input. These two integers denote the value of v 

(-100 &lt;= v &lt;= 100) and t(0&lt;=t&lt;= 200) ( t means at
the time the particle gains that velocity)<span style="">&nbsp;
</span></p>

<p class="MsoBodyText2"><span style="">&nbsp; </span></p>

<p class="MsoNormal" style="text-align: justify;"><b style=""><font size="5">Output</font></b></p>

<p class="MsoNormal" style="text-align: justify;"><span style="font-size: 12pt;">For each line of input
print a single integer in one line denoting the displacement in double of that time.<o:p></o:p></span></p>

<p class="MsoNormal" style="text-align: justify;"><span style="font-size: 12pt;"><!--[if !supportEmptyParas]-->&nbsp;<!--[endif]--><o:p></o:p></span></p>

<p class="MsoNormal" style="text-align: justify;"><b style=""><font size="5">Sample Input</font></b></p>
<font size="3" face="Courier">
0 0<br>

5 12<br>
</font>
<br>

<p class="MsoNormal" style="text-align: justify;"><b style=""><font size="5">Sample Output</font></b></p>
<font size="3" face="Courier">

0<br>

120<br>

</font></div>
<font size="3" face="Courier"></font>
<font size="3" face="Times New Roman">

___________________________________________________________________________________<br>
Shahriar Manzoor
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